Posted On: Feb 4, 2019

Starting today, Inter-Region Virtual Private Cloud (VPC) Peering can now be setup between the AWS US Govcloud (US) Regions: AWS GovCloud (US-Gov-West) and AWS GovCloud (US-Gov-East).

Inter-Region VPC Peering allows VPC resources, such as Amazon EC2 instances, Amazon RDS databases, and AWS Lambda functions, to communicate with each other while running in different AWS Region. Since Inter-Region VPC Peering uses private IP addresses, it does not require gateways, VPN connections, or a separate physical hardware. It provides a simple and cost-effective way to share resources between regions and replicate data for geographic redundancy. Built on the same horizontally-scaled, redundant, and highly-available technology that powers Amazon VPCs, Inter-Region VPC Peering encrypts inter-region traffic with no single point of failure or bandwidth bottleneck. Traffic using Inter-Region VPC Peering always stays on the AWS global network and never traverses the public internet, thereby reducing threat vectors, such as common exploits and DDoS attacks.

Data transferred across Inter-Region VPC Peering connections is charged at the standard inter-region data transfer rates.

For more information, see the documentation on Amazon VPC peering.